Engineering Submittal Sheet
Engineering
Submittal
Sheet
Bosch Thermotechnology Corp. reserves the right to make changes without notice due
to continuing engineering and technological advances | BTC 722008302 A | 12.2011
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: 1-800-798-8161 Fax: 1-603-965-7581 www.bosch-climate.us
TRONIC WH17 & WH27
Electric Tankless Water Heaters
1 of 4
Engineering Specifi cations
Water heater shall be a Model TRONIC WH17 or, WH27.
Installation shall consist of ___Model TRONIC WH17 electric
tankless water heaters as distributed by Bosch Thermotechnology
Corp. and 99% thermal effi ciency. Supply voltage shall be
240VAC (208VAC, 220VAC) with a maximum output of 17.25kW.
Installation shall consist of ___Model TRONIC WH27 electric
tankless water heaters as distributed by Bosch Thermotechnology
Corp. with a thermal effi ciency of 99%. Supply voltage shall be
240VAC (208VAC, 220VAC) with a maximum output of 26.85kW.
The tankless water heaters shall be UL listed for the US and
Canada and UPC certifi ed.
CONSTRUCTION
Water heater shall be electricity powered with compact
tankless design for whole house operation and an effi ciency
rating of 97%. Primary heat exchanger shall be made from
composite material and the elements shall be made from
-sheathed copper. Unit shall be protected by a tough sheet
metal housing. Heat exchanger shall be rated for maximum
working pressure not less than 150 psig. Water heater shall be
equipped with a fl ow turbine. Water connections for inlet and
outlet shall be ¾” NPT male.
The controls shall contain an external output temperature
selector and a high temperature safety cut-out. Unit shall be
equipped with a fl ow turbine and a temperature sensor for
constant output temperature. A red light shall indicate when
the unit is powering one or more elements.
Dimensions
15¼"
12½"
4½"
12⅝"
2½"
3½"
6⅛"
5¾"
1¾"
InletOutlet
12⅝"




